Error Code FRD
Freezer defrost heater circuit is broken
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: Freezer Defrost LED blinks
What This Means
Sensor wire disconnected from CN20; Heater element short circuit; Bimetal thermostat failed; Thermistor open or shorted
What actually causes this:
Defrost heater element burned out or thermostat stuck
First Thing to Check
Unplug and check if CN20-6 and CN20-8 wires are firmly connected
Parts Involved
How to Fix
- 1
1. Disconnect MAIN PCB CN20 from board
- 2
2. Measure resistance between CN20-6 and CN20-8
- 3
3. Should read 63 ohms ±7% for freezer defrost heater
- 4
4. 0 ohm indicates short, infinity indicates open circuit
Other Error Codes for RF22R7351EF
Freezer temperature sensor is broken or disconnected
Outside temperature sensor is not working
Ice storage room temperature sensor is not working
Flex Zone damper heater circuit is broken
Refrigerator temperature sensor is broken or disconnected
Flex-Zone temperature sensor is broken or disconnected
Freezer fan motor is not running
Control board IO expander chip is not working